staging: rtl8723bs: remove unnecessary comment separator lines

Remove the long dashed separator lines from block comments as they
don't follow kernel coding style, as suggested by Greg KH.

Signed-off-by: Ignacio Pena <ignacio.pena87@gmail.com>
Link: https://lore.kernel.org/r/20250716175044.81439-1-ignacio.pena87@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>